The stacked IBCs may look uninteresting, but this Biobox self-build bio filtration system is approved by the UK’s environmental authorities as a method for handling minor pesticide spills at filling and final washings.

It can handle spills/washings up to 15,000l/year going through the system.

The individual IBCs are filled with a straw, compost and soil mix, which can be spread on land after pesticide breakdown.

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The liquid fraction that comes through the filters can be irrigated onto land.

While simple in concept, this still requires a bunded collection area.

Sprayer wash-out in the field and care at a well-positioned fill area (over soil and away from drains /surface water) remain the most feasible option for most.